Home / 13,835,128.47-20,736,181.99-6,439,223.76

Finding the Fourth Proportional to 13,835,128.47, 20,736,181.99 and 6,439,223.76

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Solution

The fourth proportional to 13,835,128.47, 20,736,181.99 and 6,439,223.76 is: 9,651,151.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,835,128.47 : 20,736,181.99 = 6,439,223.76 : x
  2. Step 2: Convert to fraction form
    13,835,128.47/20,736,181.99 = 6,439,223.76/x
  3. Step 3: Cross multiply
    13,835,128.47x = 20,736,181.99 × 6,439,223.76
  4. Step 4: Simplify right side
    13,835,128.47x = 133,524,915,761,692.06
  5. Step 5: Solve for x
    x = 133,524,915,761,692.06/13,835,128.47
  6. Step 6: Final answer
    x = 9,651,151.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.